VFO Dial PluginL-Linked (adjusts the receive and transmit frequencies simultaneously) R- adjusts the receive frequency onlyT- adjusts the transmit frequency onlyR=T- sets the receive frequency equal to the current transmit frequency
Swirling the VFO knob with the mouse will instantly alter the frequency in small increments. If you
swirl the VFO slowly, the frequency increments are smaller. Move the VFO knob very carefully for
fine-tuning. The frequency can be adjusted in 1-Hz, 10 hz and 100hz steps.

This VFO also cover the USB, LSB, CW and FM mode as well as Power Off and VOX. In addition it comes with a step up/down buttons.